package org.jooq.tools.json;

@SuppressWarnings("unused")
@Deprecated(forRemoval = true)
class Yylex {

    /** This character denotes the end of file */
    public static final int YYEOF = -1;

    /** initial size of the lookahead buffer */
    private static final int ZZ_BUFFERSIZE = 16384;

    /** lexical states */
    public static final int YYINITIAL = 0;
    public static final int STRING_BEGIN = 2;

    /**
     * ZZ_LEXSTATE[l] is the state in the DFA for the lexical state l
     * ZZ_LEXSTATE[l+1] is the state in the DFA for the lexical state l
     *                  at the beginning of a line
     * l is of the form l = 2*k, k a non negative integer
     */
    private static final int ZZ_LEXSTATE[] = {
            0,  0,  1, 1
    };

    /**
     * Translates characters to character classes
     */
    private static final String ZZ_CMAP_PACKED =
            "\11\0\1\7\1\7\2\0\1\7\22\0\1\7\1\0\1\11\10\0"+
                    "\1\6\1\31\1\2\1\4\1\12\12\3\1\32\6\0\4\1\1\5"+
                    "\1\1\24\0\1\27\1\10\1\30\3\0\1\22\1\13\2\1\1\21"+
                    "\1\14\5\0\1\23\1\0\1\15\3\0\1\16\1\24\1\17\1\20"+
                    "\5\0\1\25\1\0\1\26\uff82\0";

    /**
     * Translates characters to character classes
     */
    private static final char [] ZZ_CMAP = zzUnpackCMap(ZZ_CMAP_PACKED);

    /**
     * Translates DFA states to action switch labels.
     */
    private static final int [] ZZ_ACTION = zzUnpackAction();

    private static final String ZZ_ACTION_PACKED_0 =
            "\2\0\2\1\1\2\1\3\1\4\3\1\1\5\1\6"+
                    "\1\7\1\10\1\11\1\12\1\13\1\14\1\15\5\0"+
                    "\1\14\1\16\1\17\1\20\1\21\1\22\1\23\1\24"+
                    "\1\0\1\25\1\0\1\25\4\0\1\26\1\27\2\0"+
                    "\1\30";

    private static int [] zzUnpackAction() {
        int [] result = new int[45];
        int offset = 0;
        offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result);
        return result;
    }

    private static int zzUnpackAction(String packed, int offset, int [] result) {
        int i = 0;       /* index in packed string  */
        int j = offset;  /* index in unpacked array */
        int l = packed.length();
        while (i < l) {
            int count = packed.charAt(i++);
            int value = packed.charAt(i++);
            do result[j++] = value; while (--count > 0);
        }
        return j;
    }


    /**
     * Translates a state to a row index in the transition table
     */
    private static final int [] ZZ_ROWMAP = zzUnpackRowMap();

    private static final String ZZ_ROWMAP_PACKED_0 =
            "\0\0\0\33\0\66\0\121\0\154\0\207\0\66\0\242"+
                    "\0\275\0\330\0\66\0\66\0\66\0\66\0\66\0\66"+
                    "\0\363\0\u010e\0\66\0\u0129\0\u0144\0\u015f\0\u017a\0\u0195"+
                    "\0\66\0\66\0\66\0\66\0\66\0\66\0\66\0\66"+
                    "\0\u01b0\0\u01cb\0\u01e6\0\u01e6\0\u0201\0\u021c\0\u0237\0\u0252"+
                    "\0\66\0\66\0\u026d\0\u0288\0\66";

    private static int [] zzUnpackRowMap() {
        int [] result = new int[45];
        int offset = 0;
        offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result);
        return result;
    }

    private static int zzUnpackRowMap(String packed, int offset, int [] result) {
        int i = 0;  /* index in packed string  */
        int j = offset;  /* index in unpacked array */
        int l = packed.length();
        while (i < l) {
            int high = packed.charAt(i++) << 16;
            result[j++] = high | packed.charAt(i++);
        }
        return j;
    }

    /**
     * The transition table of the DFA
     */
    private static final int ZZ_TRANS [] = {
            2, 2, 3, 4, 2, 2, 2, 5, 2, 6,
            2, 2, 7, 8, 2, 9, 2, 2, 2, 2,
            2, 10, 11, 12, 13, 14, 15, 16, 16, 16,
            16, 16, 16, 16, 16, 17, 18, 16, 16, 16,
            16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
            16, 16, 16, 16, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, 4, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, 4, 19, 20, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, 20, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, 5, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            21, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, 22, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            23, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, 16, 16, 16, 16, 16, 16, 16,
            16, -1, -1, 16, 16, 16, 16, 16, 16, 16,
            16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
            -1, -1, -1, -1, -1, -1, -1, -1, 24, 25,
            26, 27, 28, 29, 30, 31, 32, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            33, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, 34, 35, -1, -1,
            34, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            36, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, 37, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, 38, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, 39, -1, 39, -1, 39, -1, -1,
            -1, -1, -1, 39, 39, -1, -1, -1, -1, 39,
            39, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, 33, -1, 20, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, 20, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, 35,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, 38, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, 40,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, 41, -1, -1, -1, -1, -1,
            -1, -1, -1, -1, -1, 42, -1, 42, -1, 42,
            -1, -1, -1, -1, -1, 42, 42, -1, -1, -1,
            -1, 42, 42, -1, -1, -1, -1, -1, -1, -1,
            -1, -1, 43, -1, 43, -1, 43, -1, -1, -1,
            -1, -1, 43, 43, -1, -1, -1, -1, 43, 43,
            -1, -1, -1, -1, -1, -1, -1, -1, -1, 44,
            -1, 44, -1, 44, -1, -1, -1, -1, -1, 44,
            44, -1, -1, -1, -1, 44, 44, -1, -1, -1,
            -1, -1, -1, -1, -1,
    };

    /* error codes */
    private static final int ZZ_UNKNOWN_ERROR = 0;
    private static final int ZZ_NO_MATCH = 1;
    private static final int ZZ_PUSHBACK_2BIG = 2;

    /* error messages for the codes above */
    private static final String ZZ_ERROR_MSG[] = {
            "Unkown internal scanner error",
            "Error: could not match input",
            "Error: pushback value was too large"
    };

    /**
     * ZZ_ATTRIBUTE[aState] contains the attributes of state <code>aState</code>
     */
    private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute();

    private static final String ZZ_ATTRIBUTE_PACKED_0 =
            "\2\0\1\11\3\1\1\11\3\1\6\11\2\1\1\11"+
                    "\5\0\10\11\1\0\1\1\1\0\1\1\4\0\2\11"+
                    "\2\0\1\11";

    private static int [] zzUnpackAttribute() {
        int [] result = new int[45];
        int offset = 0;
        offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result);
        return result;
    }

    private static int zzUnpackAttribute(String packed, int offset, int [] result) {
        int i = 0;       /* index in packed string  */
        int j = offset;  /* index in unpacked array */
        int l = packed.length();
        while (i < l) {
            int count = packed.charAt(i++);
            int value = packed.charAt(i++);
            do result[j++] = value; while (--count > 0);
        }
        return j;
    }

    /** the input device */
    private java.io.Reader zzReader;

    /** the current state of the DFA */
    private int zzState;

    /** the current lexical state */
    private int zzLexicalState = YYINITIAL;

    /** this buffer contains the current text to be matched and is
     the source of the yytext() string */
    private char zzBuffer[] = new char[ZZ_BUFFERSIZE];

    /** the textposition at the last accepting state */
    private int zzMarkedPos;

    /** the current text position in the buffer */
    private int zzCurrentPos;

    /** startRead marks the beginning of the yytext() string in the buffer */
    private int zzStartRead;

    /** endRead marks the last character in the buffer, that has been read
     from input */
    private int zzEndRead;

    /** number of newlines encountered up to the start of the matched text */
    private int yyline;

    /** the number of characters up to the start of the matched text */
    private int yychar;

    /**
     * the number of characters from the last newline up to the start of the
     * matched text
     */
    private int yycolumn;

    /**
     * zzAtBOL == true <=> the scanner is currently at the beginning of a line
     */
    private boolean zzAtBOL = true;

    /** zzAtEOF == true <=> the scanner is at the EOF */
    private boolean zzAtEOF;

    /* user code: */
    private StringBuffer sb=new StringBuffer();

    int getPosition(){
        return yychar;
    }



    /**
     * Creates a new scanner
     * There is also a java.io.InputStream version of this constructor.
     *
     * @param   in  the java.io.Reader to read input from.
     */
    Yylex(java.io.Reader in) {
        this.zzReader = in;
    }

    /**
     * Creates a new scanner.
     * There is also java.io.Reader version of this constructor.
     *
     * @param   in  the java.io.Inputstream to read input from.
     */
    Yylex(java.io.InputStream in) {
        this(new java.io.InputStreamReader(in));
    }

    /**
     * Unpacks the compressed character translation table.
     *
     * @param packed   the packed character translation table
     * @return         the unpacked character translation table
     */
    private static char [] zzUnpackCMap(String packed) {
        char [] map = new char[0x10000];
        int i = 0;  /* index in packed string  */
        int j = 0;  /* index in unpacked array */
        while (i < 90) {
            int  count = packed.charAt(i++);
            char value = packed.charAt(i++);
            do map[j++] = value; while (--count > 0);
        }
        return map;
    }


    /**
     * Refills the input buffer.
     *
     * @return      <code>false</code>, iff there was new input.
     *
     * @exception   java.io.IOException  if any I/O-Error occurs
     */
    private boolean zzRefill() throws java.io.IOException {

    /* first: make room (if you can) */
        if (zzStartRead > 0) {
            System.arraycopy(zzBuffer, zzStartRead,
                    zzBuffer, 0,
                    zzEndRead-zzStartRead);

      /* translate stored positions */
            zzEndRead-= zzStartRead;
            zzCurrentPos-= zzStartRead;
            zzMarkedPos-= zzStartRead;
            zzStartRead = 0;
        }

    /* is the buffer big enough? */
        if (zzCurrentPos >= zzBuffer.length) {
      /* if not: blow it up */
            char newBuffer[] = new char[zzCurrentPos*2];
            System.arraycopy(zzBuffer, 0, newBuffer, 0, zzBuffer.length);
            zzBuffer = newBuffer;
        }

    /* finally: fill the buffer with new input */
        int numRead = zzReader.read(zzBuffer, zzEndRead,
                zzBuffer.length-zzEndRead);

        if (numRead > 0) {
            zzEndRead+= numRead;
            return false;
        }
        // unlikely but not impossible: read 0 characters, but not at end of stream
        if (numRead == 0) {
            int c = zzReader.read();
            if (c == -1) {
                return true;
            } else {
                zzBuffer[zzEndRead++] = (char) c;
                return false;
            }
        }

        // numRead < 0
        return true;
    }


    /**
     * Closes the input stream.
     */
    public final void yyclose() throws java.io.IOException {
        zzAtEOF = true;            /* indicate end of file */
        zzEndRead = zzStartRead;  /* invalidate buffer    */

        if (zzReader != null)
            zzReader.close();
    }


    /**
     * Resets the scanner to read from a new input stream.
     * Does not close the old reader.
     *
     * All internal variables are reset, the old input stream
     * <b>cannot</b> be reused (internal buffer is discarded and lost).
     * Lexical state is set to <tt>ZZ_INITIAL</tt>.
     *
     * @param reader   the new input stream
     */
    public final void yyreset(java.io.Reader reader) {
        zzReader = reader;
        zzAtBOL  = true;
        zzAtEOF  = false;
        zzEndRead = zzStartRead = 0;
        zzCurrentPos = zzMarkedPos = 0;
        yyline = yychar = yycolumn = 0;
        zzLexicalState = YYINITIAL;
    }


    /**
     * Returns the current lexical state.
     */
    public final int yystate() {
        return zzLexicalState;
    }


    /**
     * Enters a new lexical state
     *
     * @param newState the new lexical state
     */
    public final void yybegin(int newState) {
        zzLexicalState = newState;
    }


    /**
     * Returns the text matched by the current regular expression.
     */
    public final String yytext() {
        return new String( zzBuffer, zzStartRead, zzMarkedPos-zzStartRead );
    }


    /**
     * Returns the character at position <tt>pos</tt> from the
     * matched text.
     *
     * It is equivalent to yytext().charAt(pos), but faster
     *
     * @param pos the position of the character to fetch.
     *            A value from 0 to yylength()-1.
     *
     * @return the character at position pos
     */
    public final char yycharat(int pos) {
        return zzBuffer[zzStartRead+pos];
    }


    /**
     * Returns the length of the matched text region.
     */
    public final int yylength() {
        return zzMarkedPos-zzStartRead;
    }


    /**
     * Reports an error that occured while scanning.
     *
     * In a wellformed scanner (no or only correct usage of
     * yypushback(int) and a match-all fallback rule) this method
     * will only be called with things that "Can't Possibly Happen".
     * If this method is called, something is seriously wrong
     * (e.g. a JFlex bug producing a faulty scanner etc.).
     *
     * Usual syntax/scanner level error handling should be done
     * in error fallback rules.
     *
     * @param   errorCode  the code of the errormessage to display
     */
    private void zzScanError(int errorCode) {
        String message;
        try {
            message = ZZ_ERROR_MSG[errorCode];
        }
        catch (ArrayIndexOutOfBoundsException e) {
            message = ZZ_ERROR_MSG[ZZ_UNKNOWN_ERROR];
        }

        throw new Error(message);
    }


    /**
     * Pushes the specified amount of characters back into the input stream.
     *
     * They will be read again by then next call of the scanning method
     *
     * @param number  the number of characters to be read again.
     *                This number must not be greater than yylength()!
     */
    public void yypushback(int number)  {
        if ( number > yylength() )
            zzScanError(ZZ_PUSHBACK_2BIG);

        zzMarkedPos -= number;
    }


    /**
     * Resumes scanning until the next regular expression is matched,
     * the end of input is encountered or an I/O-Error occurs.
     *
     * @return      the next token
     * @exception   java.io.IOException  if any I/O-Error occurs
     */
    public Yytoken yylex() throws java.io.IOException, ParseException {
        int zzInput;
        int zzAction;

        // cached fields:
        int zzCurrentPosL;
        int zzMarkedPosL;
        int zzEndReadL = zzEndRead;
        char [] zzBufferL = zzBuffer;
        char [] zzCMapL = ZZ_CMAP;

        int [] zzTransL = ZZ_TRANS;
        int [] zzRowMapL = ZZ_ROWMAP;
        int [] zzAttrL = ZZ_ATTRIBUTE;

        while (true) {
            zzMarkedPosL = zzMarkedPos;

            yychar+= zzMarkedPosL-zzStartRead;

            zzAction = -1;

            zzCurrentPosL = zzCurrentPos = zzStartRead = zzMarkedPosL;

            zzState = ZZ_LEXSTATE[zzLexicalState];


            zzForAction: {
                while (true) {

                    if (zzCurrentPosL < zzEndReadL)
                        zzInput = zzBufferL[zzCurrentPosL++];
                    else if (zzAtEOF) {
                        zzInput = YYEOF;
                        break zzForAction;
                    }
                    else {
                        // store back cached positions
                        zzCurrentPos  = zzCurrentPosL;
                        zzMarkedPos   = zzMarkedPosL;
                        boolean eof = zzRefill();
                        // get translated positions and possibly new buffer
                        zzCurrentPosL  = zzCurrentPos;
                        zzMarkedPosL   = zzMarkedPos;
                        zzBufferL      = zzBuffer;
                        zzEndReadL     = zzEndRead;
                        if (eof) {
                            zzInput = YYEOF;
                            break zzForAction;
                        }
                        else {
                            zzInput = zzBufferL[zzCurrentPosL++];
                        }
                    }
                    int zzNext = zzTransL[ zzRowMapL[zzState] + zzCMapL[zzInput] ];
                    if (zzNext == -1) break zzForAction;
                    zzState = zzNext;

                    int zzAttributes = zzAttrL[zzState];
                    if ( (zzAttributes & 1) == 1 ) {
                        zzAction = zzState;
                        zzMarkedPosL = zzCurrentPosL;
                        if ( (zzAttributes & 8) == 8 ) break zzForAction;
                    }

                }
            }

            // store back cached position
            zzMarkedPos = zzMarkedPosL;

            switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) {
                case 11:
                { sb.append(yytext());
                }
                case 25: break;
                case 4:
                { sb = null; sb = new StringBuffer(); yybegin(STRING_BEGIN);
                }
                case 26: break;
                case 16:
                { sb.append('\b');
                }
                case 27: break;
                case 6:
                { return new Yytoken(Yytoken.TYPE_RIGHT_BRACE,null);
                }
                case 28: break;
                case 23:
                { Boolean val=Boolean.valueOf(yytext()); return new Yytoken(Yytoken.TYPE_VALUE, val);
                }
                case 29: break;
                case 22:
                { return new Yytoken(Yytoken.TYPE_VALUE, null);
                }
                case 30: break;
                case 13:
                { yybegin(YYINITIAL);return new Yytoken(Yytoken.TYPE_VALUE, sb.toString());
                }
                case 31: break;
                case 12:
                { sb.append('\\');
                }
                case 32: break;
                case 21:
                { Double val=Double.valueOf(yytext()); return new Yytoken(Yytoken.TYPE_VALUE, val);
                }
                case 33: break;
                case 1:
                { throw new ParseException(yychar, ParseException.ERROR_UNEXPECTED_CHAR, yycharat(0));
                }
                case 34: break;
                case 8:
                { return new Yytoken(Yytoken.TYPE_RIGHT_SQUARE,null);
                }
                case 35: break;
                case 19:
                { sb.append('\r');
                }
                case 36: break;
                case 15:
                { sb.append('/');
                }
                case 37: break;
                case 10:
                { return new Yytoken(Yytoken.TYPE_COLON,null);
                }
                case 38: break;
                case 14:
                { sb.append('"');
                }
                case 39: break;
                case 5:
                { return new Yytoken(Yytoken.TYPE_LEFT_BRACE,null);
                }
                case 40: break;
                case 17:
                { sb.append('\f');
                }
                case 41: break;
                case 24:
                { try{
                    int ch=Integer.parseInt(yytext().substring(2),16);
                    sb.append((char)ch);
                }
                catch(Exception e){
                    throw new ParseException(yychar, ParseException.ERROR_UNEXPECTED_EXCEPTION, e);
                }
                }
                case 42: break;
                case 20:
                { sb.append('\t');
                }
                case 43: break;
                case 7:
                { return new Yytoken(Yytoken.TYPE_LEFT_SQUARE,null);
                }
                case 44: break;
                case 2:
                { Long val=Long.valueOf(yytext()); return new Yytoken(Yytoken.TYPE_VALUE, val);
                }
                case 45: break;
                case 18:
                { sb.append('\n');
                }
                case 46: break;
                case 9:
                { return new Yytoken(Yytoken.TYPE_COMMA,null);
                }
                case 47: break;
                case 3:
                {
                }
                case 48: break;
                default:
                    if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
                        zzAtEOF = true;
                        return null;
                    }
                    else {
                        zzScanError(ZZ_NO_MATCH);
                    }
            }
        }
    }


}